Bicycle-brake.



- No. 674,279. Patented mayv r4,4 190i." M. L. mcHoLs.

BICYCLE BRAKE. (Application med my 2s, 1900..)

(No Modul.)

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UNITED STATES PATENT OEETCE.

MARION L. NICHOLS, OF WESTFIELD, NEW JERSEY.

BICYCLE-BRAKE.

SPECIFICATION Iorming part of Letters Patent No. 674,279, dated May14.-, 1901.

Application filed May Z8, 1900. Serial No. 18,225. (No model.)

To @ZZ whom t lmay concern: I

Be it known that I, MARION L. NICHOLS, of Westfield, county of Union,State of New Jersey, have invented a new and useful Bicycle-B rake, ofwhich the following is a specification.

My invention relates to improvements in bicycle-brakes; and it consistsin the features of construction hereinafter more particularly describedand claimed.

In the accompanying drawings, forming part of this specification, Figure1 is a sectional side elevation of the brake, the crankhanger, handlebarpost, andhandle-bar being shown in dotted lines to illustrate the meansby which the brake is operated. Fig. 2 is an elevation of the brake withthe casing removed to show the inclosed parts; and Fig. 3 is a centralhorizontal sectional detail of the same, showing the brake, the axle,and its bearings.

In the drawings, 2 represents the axle; 3, the step mounted on the outerend of the same; 4, the wheel-hub; 5, a brake-drum screwthreaded uponthe hub and itself containing the cup 6, the cone 7, and the balls 8 ofthe axle-bearing.

A is a two-part housing or casing surrounding and inclosing theabove-described parts and the brake hereinafter described. The upperpart 9 of A has a stem 10, which is connected to and forms part of oneof the rear stays of the frame. A The lower part 11 of the casing has arear upwardly-extending member 12, which is hinged at 13 to the part 9.The forwardly-extending parts 14 and 15, respectively, of the two partsof the casing connect with the rear arm 16 of the frame, the member 14being brazed 'or otherwise permanently secured upon the sleeve or collar17, which is brazed to the rear arm 16, while the lower member 15 isclamped upon the collar 17 by means of the collar-nut 18, screw-threadedupon the collar 17.

The strap-brake B is mounted upon a pin 19, the ends of which aresupported in the walls of the housing A. The short end 2O of the brakeis bent backward upon itself and bears resiliently upon the inner wallof the casing, thus serving to assist in the throwed action of the brakewhen it is released.

The brake itself is made up of the two members 2l and 22, hingedtogether at 23, the part 21 being slightly shorter than the other, sothat when the part 22 is turned upon its hinge away from the drum itpermits the convenient removal of the drum from the brake. The end ofthe part 22 engages with a longitudinal slot 24 in the jaw 25, which ismounted upon the pin 26, supported in the opposite walls of the housing,as shown best in Fig. 2. The lever C is rigidly connected to the jaw 25,the short arm 27 of the lever being restrained by means of the spring28, connecting one end to the lever and the other to a pin 29 in thetubular part l0 of the casing. To the long arm 30 of the lever isconnected the cable 31, which runs from the casing through the arm 16,the crank-hanger 32, lower front brace 33, the wheel-head 34, handle-bar35 to a trigger or lever 36, pivoted within the handle-bar and servingby its operation to pull upon the cable so as to operate the lever O andapply the brake. The described axle-bearings are arranged in the outerend of the drum 5, as shown in Fig. 3,

so' that the center end of the drum and inclosing brake is intermediateof the two axlebearings, thereby avoiding the lateral strain, whichwould be caused in the operation of the brake if it were positionedoutside of the bearing.

I claiml. YA band-brakehaving the tip of its pivi oted end extended andinresilient engagement with a fixed part, whereby said tip acts to throwthe band out of engagementwith its drum. A

2. In combination with a brake-drum,a twopart interhinged band fittedthereto, the member having pivotal support being of less arc thanasemicircle, and the other member having detachable engagement with thebrakeoperating mechanism, and independent springs acting to throw bothmembers off the drum.

3. In a brake of the class described, the combination with the drum andits case of the two-part band fitted to said drum,-tl1e rear end of saidband being l extended and bent upon itself and bearing against the casewith resilient pressure so as to tend to throw the band off the drum,the spring-controlled bell-crank lever detachably connected to the lOOfree end of the band, and the cable for operating said lever.

et. The combination with a brake-drum and a housing therefor, of atwo-part interhinged band fitted thereto, one member having rela tivefixed pivotal support upon said housing, and the operating mechanismwith which the other member of said brake has detachableconnection,wl1ereby said brake can be readily unshipped from saidmechanism and the one member folded back upon the other to permit thedrum to be Withdrawn therefrom.

5. In combination With a drum, atwo-part interhinged band-brake fittedthereto,the piv oted member being less than a semicircle, theoperating-lever detachably engaging the tip of the other member, and therear extension upon the pivoted member resiliently engag ing a fixedpart and tending to throw the brake off the drum.

6. The combination with the axle, the drum carried thereby with itsmedial line intermediate the axle-bearings, the housing for the drumconstituting part of the machine-frame, and the frame membercommunicating therewith, of the two-part band-brake fitted to said drum,its pivot-support in said housing, the pivoted member of the brake beingof less arc than a half-circle, the operating-cable running from saidhousing through said communicating frame member, and its detachableconnections with said brake.

7. The combination with the axle, the drum carried thereby, and thehousing for said drum communicating with a frame member, of thetwopartintel-hinged band-brake fitted to said drum and having pivotalsupport upon said housing, aresilient extension or projection upon thepivoted member of said brake engaging the wall of the housing andtending to throw the brake off the drum, said piv oted brake memberbeing of less are than a half-circle, the operating-lever and the cableattached to said leverand running through said communicating framemember.

8. The combination with a brake-drum, of a two-part interhinged bandfitted thereto, a spring acting to throw away from the drum the memberhaving pivotal support, and an operating lever detachably engaging theother member of said brake, as and. for the purposes specified.

Signed at New York city, New York, this 15th day of May, 1900.

MARION L. NICHOLS.

Witnesses:

EVERETT J. EssnLs'rYN, T. D. MERWIN.

